
JSN-SR04T V3.3 Waterproof Integrated Ultrasonic Ranging Sonar Sensor Module
The JSN-SR04T V3.3 is a waterproof integrated ultrasonic ranging module that measures distance through a sealed probe connected by a long cable. Customers who check the JSN-SR04T price in Bangladesh usually pick it for outdoor and damp locations where an ordinary HC-SR04 cannot survive. The V3.3 board runs from 3.3V to 5V and supports both the classic trigger/echo mode and a one-wire auto UART mode, so you can drop it into existing Arduino code or read distance over a single serial line. It is widely used for water tank level monitoring, rain and flood detection, car parking sensors, obstacle avoidance robots and IoT automation. Order from Tekko today and buy this waterproof ultrasonic sonar sensor in Bangladesh for your next DIY or engineering project.
Key Features:
• Fully sealed waterproof ultrasonic probe for outdoor and wet environments
• Measuring range of approximately 20cm to 600cm
• V3.3 board accepts a wide 3.3V to 5V supply, ideal for both Arduino and ESP32
• Two operation modes: standard Trig/Echo and one-wire auto UART output
• 40kHz ultrasonic transducer with approx ±1cm practical accuracy
• Compatible with HC-SR04 style code for easy migration of old sketches
• Separate probe and control board joined by a long shielded cable
Not sure it will work? Test your circuit free in Tekko Sim — on your phone, in Bangla or English.
| Category | Modules |
| Model no. | JSN-SR04T-V3.3 |
| Availability | In stock |
| In stock | 2 pcs |
| Delivery | Cash on Delivery, nationwide Bangladesh |
| Model | JSN-SR04T V3.3 |
| Operating Voltage | 3.3V - 5V DC |
| Operating Current | < 30mA |
| Ultrasonic Frequency | 40kHz |
| Detection Range | approx 20cm - 600cm |
| Measurement Accuracy | approx ±1cm |
| Output Modes | Trigger/Echo (HC-SR04 compatible) and one-wire auto UART at 9600bps |
| Probe | sealed waterproof transducer (the control board itself is not waterproof) |
| Probe Cable Length | approx 2.5m |
| Blind Zone | approx 20cm |
| Board Size | approx 41 x 28 mm |
| Compatible With | Arduino, ESP8266, ESP32, STM32, Raspberry Pi |


